Eleazer kempshall



(No Model.)

` E. KEMPSHALL.

SNAP HOOK.

Patented May 9, 17882.

No 257,721. l

`UNITED STATES PATENT OFFICE.

ELEAZER KEMPSHALL, OF NEW BRITAIN, CNNECTICUT- SNAP-HOOK.

SPECIFICATION forming' part of Letters Patent No. 257,721, dated May 9,1882. Application tiled December 15, 1881. (No model.)

To all whom it may concern l Be it known that I, ELEAZER KEMPsnALL, ofNew Britain, in the county of Hartford and State of Connecticut, haveinvented certain new and useful Improvements in Snap-Hooks, of which thefollowing is a specification.

My invention relates to improvements in snap-hooks of the class whichhave a longitudinally-sliding bolt, in which the cylindrical hollow bodyof the hooks is made in two semicylindrical halves, with lugs upon onehalf, which take into recesses in the other half; also, in which acylindrical body"is provided with a. hook and longitudinally-slidingbolt at each end, with a single spring between acting upon both bolts;and the objects ofl my improvements are, tirst, to reduce the cost otconstruction, and,second, to produce a double snap-hook which shall becompactin form, and which can be made at a small cost. I

.attain these objects by the simple construction shown in theaccompanying drawings, in Which- Figure l is a side elevation of the twohalves ot'the body in the form in which theyare cast. Figs. 2 and 3 areplan views et' one ot' said parts. Fig. 4 is acentral longitudinalsection ot` the complete snap, partly in elevation. Figs. 5 and 6 aretransverse sections` of the body on line w .fr ot Figs. 4 and 8, showingrespectively the two halves bet'ore and after securing them together.Fig. 7 is a plan view, showing my two-part body applied to a singleinstead ot' adouble hooked snap5and Fig. 8 is a side elevation ofthesame.

A designates the lower, and B the upper, halt'ot' the cylindrical body,both oi' which are substantially in the form of a semi-cylindrical shellin cross-section for the greater portion of their length. 4

The part A has a hook, a., at each end.` As in ordinary snaps, thesehooks are first castas bent o" to one side, after which they are`straightened into the 4, 7, and 8.

Side recesses, b b, are cast in the part A, and corresponding lugs, c o,are cast on the part B, the same being formed preferably ot' castmalleable iron. The part B might,'however, be readily formed of sheetlnetal. `The bottoms of the recesses b b slant inward toward each other,as shown in Figs.`5 and 6.

position shown in Figs.

The parts are placed together with the lugs on part B entering therecesses in part A, as

shown in Fig. 5, after which the lugs are bent inward, as shown in Fig.6, to hold the two parts of the body together. The seams are lilled up,and the parts also further secured together Yduring the usual tinuingoperation. No drilling is required to make room for the spring andsliding bolts.

After one of the sliding bolts d d has been inserted the hook for thatend may be bent intoposition. 'Then insertthe springoand the other boltand bend the other hook into position, and the device is complete. Thesame Spring acts upon both sliding bolts, and therefore the body of thisdouble-hooked snap does not have to be made twice thelength of asingleone. Such double-hooked snaps are useful upon breast-straps, and in manyother places.

Figs. Zand S show the first part of my invention as applied to asingle-hooked snap, and the sainey reference-letters are used to designate corresponding parts, but have the character affixed thereto.

l'do not claim a, snap-hook having a cylindrical body with spring and alongitudinallymoving bolt working therein, as the same is old; neitherdo I claim a double-hooked snap, because a prior patent shows a snapwith a hook .at each end, and a single piece ot; sheet metal extendingfrom hook to hook, fastened at the middle ot'its length to the body ot'said hook, so that each end constituted a springtongue adapted to closeits own hook.

I claim as my invention- 1. AIn a snap-hook, the cylindrical bodyconsistingoftwo semi-cylindrical shells havinglugs upon' one part andcorresponding recesses in the. other part, which hold Ithe partstogether when thelugs are putin place and bentinward, substantially asdescribed, and for the purpose'A specified.

2. The im proved doublehooked snap,consist ing of the cylindrical body,two hooks and sliding bolts, and one spring acting upon both slidingbolts, substantially as described, and for the'pnrpose specified. v

ELEAZER KEMPSHALL.

Witnesses:

LYMAN S. BURR, JOHN P. BARTLETT.

